Overflow shield



FIG. 1 is a perspective view of the overflow shield showing a new ornamental design thereof;

FIG. 2 is a front view of the overflow shield shown in FIG. 1;

FIG. 3 is a back view of the overflow shield shown in FIG. 1;

FIG. 4 is a bottom view of the overflow shield shown in FIG. 1;

FIG. 5 is a top view of the overflow shield shown in FIG. 1;

FIG. 6 is a left side view of the overflow shield shown in FIG. 1; and,

FIG. 7 is a right side view of the overflow shield shown in FIG. 1.

The broken line illustrates portions of the article and forms no part of the claimed design. 

CLAIM The ornamental design for overflow shield, as shown and described. 